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ENGINE 46 OVERHAUL Main bearings selection Main bearings size Bearing ladder Grade 1 Grade 2 Grade 3 Crankshaft main journals Grade A BLUE - BLUE RED - BLUE RED - RED Grade B BLUE - GREEN BLUE - BLUE RED - BLUE Grade C GREEN - GREEN BLUE - GREEN BLUE - BLUE Colour code on edge of bearing - Intermediate RED - Thick CAUTION: If two bearing colours are to be is to be refitted, bearing shells must be as Main bearings type 1 2 3 4 5 Block Plain Grooved Grooved Grooved Plain Ladder Plain Plain Plain Plain Plain |